Control circuit in an automatic clothes washing machine



Oct. 10, 1961 F. H. GREEN 3,003,345

CONTROL CIRCUIT IN AN AUTOMATIC CLOTHES WASHING MACHINE Filed Jan. 17,1955 3 Sheets-Sheet 1 INVENTOR. Floyd H Green 53W 1 W g 11 Aflys,

Oct. 10, 1961 F. H. GREEN 4 CONTROL CIRCUIT IN AN AUTOMATIC CLOTHESWASHING MACHINE Filed Jan. 17, 1955 3 Sheets-Sheet 2 E a. 2 w I LL] (D 81: E s m z LL I I I I LLJ m 2 w i o I m .1 Q E O OLI-LL. OILLL ID IOUnited States Patent 3,003,345 CONTROL CIRCUIT IN AN AUTOMATIC CLOTHESWASHLJG MACHINE Floyd H. Green, Forest Park, 111., assignor to GeneralElectric Company, a corporation of New York Filed Jan. 17, 1955, Ser.No. 482,129 11 Claims. (Cl. 68-12) The present invention relates tocontrol circuits for automatic clothes washing machines; and it is thegeneral object of the invention to provide in a clothes washing machineof the automatic type, a control circuit incorporating improved facilityfor selectively setting either a normal washing action or a gentlewashing action in the automatic cycle of the machine, so as toaccommodate the laundering of a wide variety of fabrics undersubstantially ideal conditions.

Another object of the invention is to provide in a clothes washingmachine of the automatic type, a control circuit incorporating improvedfacility for selectively setting either a normal water-extracting actionor a gentle water-extracting action in the automatic cycle of themachine, so as to accommodate the laundering of a Wide variety offabrics under substantially ideal conditions.

Another object of the invention is to provide in. a clothes washingmachine, a control circuit of the character noted, wherein the facilitymentioned includes an electric drive motor having both a relatively highoperating speed and a relatively low operating speed, together with anarrangement for preselecting the desired operating speed of the drivemotor so as selectively to achieve a normal action upon normal fabricsand a gentle action upon delicate fabrics.

A further object of the invention is to provide in a clothes washingmachine, a control circuit of the character noted, wherein the drivemotor is of the induction split-phase 4-pole-6-pole type, together withan arrangement for preselecting the speed of the drive motor, so as toachieve a normal action upon normal fabrics when the drive motor isoperated as a 4-pole motor and to achieve a gentle action upon delicatefabrics when the drive motor is operated as a 6-pole motor.

A further object of the invention is to provide in an automatic clotheswashing machine, a control circuit of the character noted, wherein thefacility for preseleeting the operating speed of the drive motorcomprises a single manually operable control device.

A still further object of the invention is to provide in an automaticclothes washing machine, a control circuit of the character noted,wherein the facility mentioned includes a single manually operabledevice for preselecting either the normal cycle or the gentle cyclementioned, wherein this preselection of the particular cycle not onlyachieves preselection of the operating speed of the drive motor, butalso effects preselection of desired other components of the twoautomatic washing cycles mentioned.

Further features of the invention pertain to the particular arrangementof the elements of the electric control circuit for the clothes washingmachine, whereby the above-outlined and additional operating featuresthereof are attained.

The invention, both as to its organization and method of operation,together with further objects and advantages thereof, will best beunderstood by reference to the following specification taken inconnection with the accompanying drawings, in which:

FIGURE 1 is a front perspective view, partly broken away, of anautomatic clothes washing machine of the spin-tub type incorporating anelectric control circuit embodying the present invention;

FIG. 2 is a greatly enlarged plan View of the manual dial of the programselector switch incorporated in the machine of FIG. 1;

Ice

FIG. 3 is a diagram of the electric control circuit incorporated in themachine shown in FIG. 1, and embodying the present invention; and

FIG. 4 is a time-sequence control chart of the control cams incorporatedin the electric control circuit shown in FIG. 3.

Referring now to FIG. 1 of the drawings, the clothes washing machine 16there illustrated is of the spin-tub type and of the generalconstruction and arrangement of that disclosed in the copendingapplication of Kemper M. Hammell and John D. Warhus, Serial No. 196,917,filed November 21, 1950, now Patent No. 2,723,737, granted November 15,1955. More particularly the machine 10 comprises a substantiallyrectangular base 11 that is supported upon independently adjustable feet12 arranged to engage the floor or other supporting surface. A housing13 is removably carried by the base 11 and includes rear and side wallsdefining both a front opening and a top opening; a front wall 14 isremovably carried by the front of the housing 13 in order to close thefront opening mentioned; and a top wall 15 is removably carried by thetop of the housing 13 in order to close the top opening mentioned. Thelower portions of the rear and side walls of the housing 13 join theupper portions of the rear and sides of the base 11; while the lowerportion of the front wall 14 joins the upper portion of the front of thebase 11 so as to provide a toe-receiving recess 16 disposed below andrearwardly of the front wall 14 and forwardly of the front of the base11. The sides of the front wall 14 are disposed substantially flush withthe side Walls of the housing 13. The sides of the top wall 15 aredisposed substantially flush with the side walls of the housing 13; andthe front of the top Wall 15 is disposed substantially flush with theupper portion of the front wall 14. The top wall 15 projects rearwardlyfrom the rear wall of the housing 13 in order to provide an upstandingspace 17 disposed below the rear of the top wall 15 and behind the rearwall of the housing 13; which upstanding space 17 is adapted to receiveplumbing connections, not shown. More specificially, the rear of the topwall 15 terminates in an upwardly directed backsplash 18 that projectsover the top of the upstanding space 17; and a substantially centrallydisposed top opening 19 is provided in the top wall 15 in order torender the interior of the housing 13 accessible from the exterior. Adoor 20 is provided for the purpose of selectively closing the topopening 19, the rear edge of the door 20 being hinged to the top of thewall 15 and movable toward and away from the backsplash 18 intorespective open and closed positions with respect to the top opening 19.

Upstahding supporting structure 21 is arranged in the lower portion ofthe housing 13 and carried by the base 11; which supporting structure 21carries an upstanding substantially cylindrical casing or drain tub 22arranged in the upper portion of the housing 13. The drain tube 22 isprovided with an inwardly directed annular marginal throat 23 thatterminates in a top opening 24 disposed below the top wall 15; and thetop edge of the throat 23 carries a substantially annular sealing gasket25 surrounding the top opening 24 and engaging the lower surface of thetop wall 15 for the purpose of sealing the top opening 24 in the draintub 22 to the top wall 15, the bottom wall of the drain tub 22 beingspaced above the base 11 to define a machinery compartment 26 arrangedin the lower portion of the housing 13. The base 11 carries additionalsupporting structure 27 upon which the principal machinery disposed inthe machinery compartment 26 is mounted. Specifically, an upstandingsupport 28 is pivotally mounted at the lower end thereof upon thestructure 27,

7 3 which upstanding support 28 comprises, among other structure, twovertically spaced apart plates 29 and 30 arranged substantiallycentrally in the machinery compartment 26.' The plate 39 is operativelyconnected to thebottom wall of the drain tub 22 surrounding the opening34' by an arrangement including an upstanding flexible boot 35 formed ofrubber, or the like.

An upstanding spin tub 36 is arranged within the drain tub 22 andsupported by a tub sleeve, not shown,

that is mounted in the bearing bracket 33 for rotation about asubstantially vertical axis; and an upstanding agitator 37 is arrangedwithin the spin tub 36 and supported by an agitator shaft, not shown,that is mounted in the tub sleeve for oscillation about thesubstantially vertical axis mentioned. The spin tub 36 is provided withan upwardly and outwardly flared side wall that terminates in an opentop disposed below the top wall 15 and arranged in substantial alignmentwith the top openings 19 and 24; whereby the interior of the spin tub 36isreadily accessible from the exterior through the top openings 19 and24- when the associated door 28 occupies its open position. The top rimof the spin tub an carries an annular balance ring 38 that is providedwith an inwardly directed annular clothes retaining flange 39. Also thebottom wall of the spin tub 36 is provided with an annular sediment trap4-0 disposed below the base of the agitator 37, the sediment trap 40communicating with the interior of the drain tub 22 by an arrangementincluding two upstanding drain conduits 41 disposed substantiallydiametrically opposite each other and carried by the spin tub 36.

An electric drive motor 4-2 mounted upon the plate 29 and provided withan upwardly directed operating shaft 7 '43, upon the upper end of whichthere is mounted a combination clutch and brake and fluid drive unit 44that includes two independently rotatable pulleys 45 and 46. Also adrain pump 47 is mounted upon the plate 29 and provided with an upwardlydirected operating shaft 48, upon the upper end of which are mounted twopulleys '49 and 50. Further, a motion-translating mechan sm 51 ismounted upon the plate 29 and provided with an upwardly directed driveshaft 52, upon the upper end of which there 'is mounted a pulley 53.

The pulley 45 of the unit 44 is directly belted by a flexible V-belt 54to the pulley 49 that is carried by the operating shaft 48 of the drainpump 47; and the pulley 59 that is carried by the operating shaft 48 ofthe drain pump 47 is directly belted by a V-belt 55'to the pulley 53that is carried by the drive shaft 52 of the motiontranslating mechanism51. The unit 44 comprises a hous ing 56 that carries the pulley 46, andthe pulley 4-6 is directly belted by a flexible l'-belt 57 to a pulley58 that is carried by the tub sleeve, not shown, that is supportedwithin the bearing bracket 33 and directly connected to the spin tub 36.Moreover, the motion-translating mecha nism 51 includes a driven shaft,not shown, that is selectively connectible by a clutch mechanism 59 tothe agi-' .61. Further, the clutch mechanism 59 is adapted to beselectively governed for clutch control purposes by an associatedelectromagnet. 62. The drain pump 47 is provided with an inletconnection 63 that communicates with the lower portion of the drain tub22, in a manner more fully explained hereinafter, and an outletconnection 64 that communicates with a check valve 65, the check valve65 being connected to a discharge conduit 66 that projects through therear wall of the housing 13 and communicates with drain plumbing, notshown.

Further, the machine 16 comprises a water supply system, not shown, andincluding valve mechanism provided with a hot water inlet conduit, acold Water inlet conduit, and an outlet conduit that communicates withthe spin tub 36. The valve mechanism mentioned is of thesolenoid-controlled type including a hot water solenoid 83 (indicated inFIG. 3) and a cold water solenoid 84 (indicated in FIG. 3). It will beunderstood that the valve mechanism mentioned normally closes the hotwater inlet conduit and the cold water inlet conduit, the hot watersolenoid 84 being operative to open the hot water inlet conduit and thecold water solenoid 84 being operative to open the cold water inletconduit. Thus when the hot water solenoid 83 is energized alone, hotwater is delivered to the outlet conduit and thence to the spin tub 36;and when the cold water solenoid $4 is energized alone, cold water isdelivered to the outlet conduit and thence to the spin tub 36. Ofcourse, it follows that when both of the solenoids 83 and 84 areenergized the hot water and the cold water are mixed and the resultingwarm water is supplied to the spin tub 36.

Referring now to FIGS. 1 and 3, the machine 10 further comprises aprogram controller or selector switch 85' that includes an upstandingrotatably mounted operating shaft 85 carrying eight insulating controlcams SS, CW, HW, A, S, T, MLS, MHS, inclusive, that respectively governeight sets of switch springs, m a manner more fully explainedhereinafter. The selector switch 85 is arranged in the housing 13 belowthe backsplash 18 and adjacent to the junction between the rear wall andthe right-hand side wall of the housing 13. The extreme upper end of theoperating shaft 86 projects through an opening provided in thebacksplash 18 and carries a rotary control knob or dial 88 of theconstruction shown in detail in FIG. 2.

Still referring to FIGS. 1 and 3 of the drawings: the machine 10 furthercomprises a wash preselector switch 89 and a rinse preselector switch 99that are arranged adjacent to each other within the housing 13 below thebaeksplash 18 and adjacent to the junction between the rear wall and theleft-hand side wall of the housing 13, the preselector switches 89 and90 being of the pushbutton type and provided with individual pushbuttonsprojecting through corresponding openings provided in the backsplashlS.Both the wash preselector switch 89 and the rinse preselector switch 90are of the illuminated pushbutton type disclosed in US. Patent No.2,431,904, granted on December 2, 1947, to John L. Andrews. Moreparticularly, the switch 89 comprises two individual interlockedpushbuttons 91 and 92 respectively constituting hot and warmpush-buttons and a setof switch springs S1. In the arrangement, the setof switch springs S1 is normally biased into its open position, but maybe operated into its closed position by operation of the warm pushbutton92. Moreover, operation of either one of the pushbuttons 91 or 92effects the return of the lastoperated one of these pushbuttons; wherebyone of the pushbuttons 91 or 92 always occupies its operated position,the hot pushbutton 91 being illustrated in its operated position in FIG.3. Similarly, the switch 90 comprises two individual interlockedpushbuttons 94 and 95 respectively constituting warm and coldpushbuttons and a set of switch springs S2. In the arrangement, the setof switch springs S2 is normally biased into. its open position, but maybe operated into its closed position by operation of the warm pushbutton94. Moreover, operation of either one of, the pushbuttons 94' or 95effects the return of the last-operated one of these pushbuttons;whereby one of the pushbuttons 94 or 95 always occupies its operatedposition, the cold pushbutton 95 being illustrated in its operatedposition in FIG. 3.

Referring again to FIG. 3, the selector switch 85 further comprises asynchronous timer motor 96 provided with an operating shaft 97, and aconnected timer escapement mechanism 98 that is provided with anoperating shaft 99. In the arrangement, when the timer motor 96 isenergized, the operating shaft 97 thereof is continuously rotated,whereby the timer escapement mechanism 98 is controlled in order tobring about intermittent rotation or stepping of its operating shaft 99through an angle of 6' at the expiration of each minute, so that theoperating shaft 99 is rotated sixty steps per hour and through 360. Theoperating shaft 86 of the selector switch 85 is operatively connected tothe operating shaft 99 of the escapement mechanism 98 through both alongitudinal slide connector 100 and a slip clutch 101. This arrangementaccommodates both rotary movement and longitudinal movement of the shaft86 by manipulation of the manual dial 88, and rotary movement of theshaft 86 by rotation of the operating shaft 99 of the escapementmechanism 98. More particularly, the operating shaft 86 of the selectorswitch 85 is mounted for both rotary and longitudinal movements; and themanual dial 88 cooperates with an associated index marker 162 carried bythe backsplash 18. Specifically, the selector switch 85 has an ofl?position when the manual dial 88 is depressed adjacent to the backsplash18 and an on position when the manual dial 88 is lifted with respect tothe backsplash 18; which movements are transmitted from the manual dial88 to the operating shaft 86 without interruption of the driveconnection between the operating shafts 86 and 99 by virtue of thearrangement of the slide connector 100, the relative rotation of theshafts 86 and 99 being accommodated by the slip clutch 101. Further, theoperating shaft 86 carriers a line switch 163 that is respectivelyoperated into its open and closed positions when the operating shaft 86is respectively depressed and raised by manipulation of the manual dial88, as previously explained.

The main motor 42 comprises an induction motor of the split-phase4-pole-6-pole type and includes a stator, not shown, carrying a 4-polestart winding 110, a 4-pole run winding 111 and a 6-pole run winding112, as well as a rotor 113 carrying a squirrel-cage winding 114 andprovided with the operating shaft 43 previously mentioned. Further, theoperating shaft 43 carries a speedresponsive device 115 that controls anassociated contact bridging member 116 of the 2-position type. Morespecifically, the contact bridging member 116 has a start positionmutually engaging three contact elements 117, 118 and 119 and a runposition commonly engaging two contact elements 120 and 121. In thearrangement, under start conditions, the contact bridging member 116occupies its start position bridging together the contact elements 117,118 and 119; and, upon acceleration of the rotor 113 to a run condition,the speed-responsive device 115 is controlled to operate the contactbridging member 116 from its start position into its run position,whereby the contact bridging member 116 disengages the contact elements117, 118 and 119 and bridges together the contact elements 120 and 121.The main motor 42 has a rating of about H.P., an operating speed at fullload of about 1725 r.p.m. when operating as a 4-pole motor, and anoperating speed at full load of about 1140 r.p.m. when operating as a6-pole motor.

In the arrangement, the agitator 37 is oscfllated at about 64 cycles perminute through the motion-translating mechanism 51 when the clutchmechanism 59 is engaged and when the main motor 42 is running as a 4-pole motor at about 1725 r.p.m.; on the other hand, the agitator 37 isoscillated at about 45 cycles per minute through the motion-translatingmechanism 51 when the clutch mechanism 59 is engaged and when the mainmotor 42 is running as a 6-pole motor at about 1140 r.p.m. The spin tub36 is rotated at a speed of about 640 r.p.m. through the fluid driveunit 44 in its engaged position when the main motor 42 is running as a4-pole motor at about 1725 r.p.m.; on the other hand, the spin tub 36 isrotated at a speed of about 420 r.p.m. through the fluid drive unit 44in its engaged position when the main motor 42 is running as a 6-polemotor at about 1140 r.p.m.

Referring now to FIG. 3 of the drawings, the control circuit as a wholeis indicated at 300 and further comprises a source of power supply of118 volts A.C., singlephase, 60 cycles, including a pair of lineconductors 131 and 132, the line conductor 131 being commonly connectedto one terminal of each of the circuit elements 84, 83, 62, 61, 110,111, 112 and 96, and the line conductor 132 being connected directly toone of the contacts of the line switch 103. The other contact of theline switch 103 is connected to a bus 133 that is commonly connected toone spring of each of the sets of switch springs operatively associatedwith the control cams SS, CW, HW, A, S, T, MLS and MHS. The other springof the set of switch springs associated with the control cam SS iscommonly connected to the stationary spring of the set of switch springsS1 of the preselector switch 89 and to the stationary spring of the setof switch springs S2 of the preselector switch 90. The movable spring ofthe set of switch springs S1 of the preselector switch 89 and the otherspring of the set of switch springs associated with the control cam CWare commonly connected to the other terminal of the cold water solenoid84. The movable spring of the set of switch springs S2 of thepreselector switch and the other spring of the set of switch springsassociated with the control cam HW are commonly connected to the otherterminal of the hot water solenoid 83. The other springs of the sets ofswitch springs respectively associated with the control cams A, S and Tare respectively connected to the other terminals of the agitatesolenoid 62, the spin solenoid 61 and the timer motor 96. The otherspring of the set of switch springs associated with the control cam MLSis commonly connected to the contact elements 118 and 120; and the otherspring of the set of switch springs associated with the control cam MHSis commonly connected to the contact element 119 and to the otherterminal of the Winding 111. The other terminal of the winding isconnected to the contact element 117; and the other terminal of thewinding 112 is connected to the contact elements 121.

Referring now to FIG. 2, it is pointed out that the manual dial 88 thatis carried on the outer end of the operating shaft 86 of the selectorswitch 85 comprises two complementary segments 141 and 142 separated bytwo off segments 143 and 144. The segment 141 is designated normalfabrics and subtends an arc of 210; the segment 142 is designateddelicate fabrics and subtends an arc of 126; and each of the offsegments subtending an arc of 12. Each of the segments 141 and 142comprises markings indicating the functions of the machine that areperformed therein and inc'ruding the functions: fill, wash, spin, rinseand spin.

Before considering in detail the mode of operation of the machine 10, itis pointed out that the cycle thereof involving the manual dial 88 isdisclosed in detail upon a time-function basis in FIG. 4. Moreover, FIG.4 comprises a chart of the time-sequence of closure of the variousindividual control circuits involved, as illustrated in the circuitdiagram of FIG. 3. Also, at this point, it is noted that in order tocarry out a washing operation in the machine 10 involving normalfabrics, the manual dial 88 is first rotated from one of the other ofits off positions into the beginning or fill portion of its normalfabrics segment 141; and then the manual dial 88 is lifted with respectto the backsplash 18 so as '7 to efiect closure of the line switch 103;whereupon the automatic cycle for washing normd fabrics ensues, the mainmotor 42 being operated as a 4-pole motor at its relatively high speedof about 1725 rpm. On the other hand, in order to carry out a washingoperation in the machine '10 involving delicate fabrics, the manual dial38 is first rotated from one or the other of its ofi positions into thebeginning or fill portion of its delicate tabr ics segment 142; and thenthe manual diflSS is lifted with respect to the backsplash 18 so as toefiect closure of the line switch 193, whereupon the automatic cycle forwashing delicate fabrics ensues, the main motor 42 being operated as a6-pole motor at its relatively low speed of about 1140 rpm.

Also, it is pointed out that preceding a washing operation involvingeither normal fabrics or delicate fabrics, the desired temperature ofthewash water is preselected by appropriate manipulation of the washpreselector switch 89, and the desired temperature of the rinse water ispreselected by appropriate manipulation of the rinse preselector switch96'. I

Considering now in greater detail the mode of operation of the machineit to carry out a washing operation involving normal fabrics, theclothes are placed within the spin tub 36, together with the requireddetergent, and the door 26 is closed; whereupon the manual dial 88 isrotated into the beginning of its normal fabrics segment 141 so that theindex fill cooperates with the index marker 102 carried by thebacksplash l8; and then the manual dial S8 is lifted with respect to thebacksplash 18 so as to effect closure of the line switch 103. At thistime, it is further assumed that the hot pushbutton 91 of the washpreselector switch 3 occupies its operated positiorr and that the coldpush-button 95 of the rinse preselector switch 9% occupies its operatedposition. Closure of the line switch 1G3 effects the connection of theline conductor 132 to the bus l33,"whereby the circuit for operating thetimer motor 96 is completed as indicated in FIG. 4. Also, at this time,the circuit for energizing the hot water solenoid 83 is completed, andthe bus 133 is extended to the wash preselector switch 89; however,without efiect at this time since the hot pushbutton 91 ccupies itsoperated position. Accordingly, only the hot water solenoid 83 isenergized so that hot water is supplied into thespin tub 36. Also, thebus 133 is extended via the set of switch springs governed by thecontrol cam MHS to the contact element 119, whereby the 4-pole startwinding fill of the main motor 42 is energized; and also the 4-pole runwinding 1-11 is energized. Accordingly, the rotor 113 starts and isaccelerated toward its normal operating speed; and sometime preceding aspeed of the operating shaft 43 of about 1140 rpm. the speed responsivemechanism 115 is actuated so as to operate the contact bridging member116 from its start position into its run position. When ther contactbridging member 116 is thus operated from its stand position into itsrun position, the circuit for energizing the 4-pole start winding 110 isinterrupted, while the circuit for energizing the 4- pole run winding111 is not disturbed. Hence, the continued energization of the4-pole runwinding 111 causes the rotor 113 of the main motor 42 to be acceleratedon into its final operating speed of'about 1725 r.p.m., the

main motor 42'operating'as a 4-pole motor at this time. While the mainmotor 4.2 is operated effecting operation of the motion-translatingmechanism 51, the agitator 37 is not actuated at this time since'theagitate solenoid 62 is now deenergized.

As time proceeds, the spin tab 36 is filled with hot water and the timermotor 96 effects step-by-step rotation of the operating shaft 86 throughthe timer escapement mechanism Q3 in a Well-understood mariner. Moreparticularly,

at the expiration of si;\'minutes, as indicated in FIG. 4, 'the actorswitch 85 is rotated into its wash position,

there the control carns SS and HW effect opening of the associated setsof switch, springs with the consequent '8 deenergization of the hotwater solenoid 83' and the resulting termination of the fill of the spintub 36. At this point, it is noted that the water supply system isregulated or adjusted so that a complete fill of the tub 36 is achievedin the six-minutes that is assigned to the fill operation by theselector switch V When the selector switch 8'5 is thus operated into itswash position, the control cam A closes the associated set of switchsprings eflecting energization of the agitate solenoid 62 with theconsequent operation of the clutch mechanism 59 into its clutchedposition so that the agitator 37 is oscillated at about 64 cycles perminute, thereby producing a normal washing action upon the clothes inthe spin tub '36.

The washing action continues for a time interval of eleven minutes, asindicated in FIG. 4, whereupon the selector switch 35 is operated intoits spin position so that the control cam A opens the associated set ofswitch springs effecting deenergization of the agitate solenoid 52, andthe control cam S efiects closure of the associated set of switchsprings effecting energization of the spin solenoid 51. Accordingly, theclutch mechanism 59 is returned into its declutched position and theunit 44'is operated into its clutched position effecting the release ofthe brake shoe 6'13 and the acceleration of the spin tub 36 through thefluid drive unit 44, as time proceeds, into its speed of about 640 rpm.Accordingly, the wash water in the spin'tub 36 is centrifuged therefrominto the drain tub 22 from which it is pumped to the exterior by theoperating drain pump 47.

fter the expiration of an additional minute the control cams CW and HWclose the associated sets of switch sprin -s, whereby the cold Watersolenoid 84 and the hot a i solenoid 83 are energized effecting thesupply of warm water into the spinning spin tub 36 resulting in aspinning-rinse of the clothes with warm water. The warm water is, ofcourse, spun out of the spin tub 36 into the drain tub 1 2 and pumped tothe exterior by the drain pump 47. The spinning-rinse continues for oneminute, whereupon the control cams CN and HVV open the associated setsof switch springs bringing about the deenergization of the cold watersolenoid 84 and the hot water solenoid 33, as indicated in KG. 4. Thespinning operation of the spin tub 36 continues for an additionalminute, whereby the control cam S opens the associated set of swnchsprings effecting the deenergization of the spin solenoid at with theresult that the unit 44 is declutched and the brake shoe 60 isreapplied, resulting in quick stopping of the spin tub 36. Also, at thistime, the control cams SS and CW close the associated sets of switchsprings with the result that only the cold water solenoid 84 isenergized, since the cold pushbutton of the rinse preselector switch 93occupies its operated position. Accordingly, cold water is supplied intothe tub 36 for a time'interval of five minutes; whereupon the controlcam A closes the associated set of switch springs effecting ener 'zationof the agitate solenoid 62 with the result that the a itator 37 is againoscillated at about 64 cycles per minute while cold water is supplied tothe spin tub 36 so that a deep cold water agitation and overflow rinsingof the clothes is accomplished. This rinse cycle continues forthree-minutes with the operation of the agitator 37, as indicated inFIG. 4, whereby the selector switch 85 is operated into its spinposition so that the control cams SS, UN and A open the associated setsof 'switchsprings and the control cam S closes the associated set ofswitch springs. More particularly, the cold water solenoid 84 isdeenergized effecting arresting of the supply of cold water to the spintub 36 and the agitate solenoid 62 is'deenergized so that the clutchmechanism 59 is returned to its declutched position. Closure of the setof switch springs associated with the control cam S effects energizationof the spin solenoid 61, whereby the unit44 is operated into itsclutched'position bringing about spinning'of the spin tub 36 in themanner previously explained. The spin tub 36 is spun at a speed of about640 r.p.m. throughout a time interval of seven minutes, as indicated inFIG. 4, so as to efiect the desired centrifugal extraction of water fromthe normal fabrics; whereby the selector switch 85 is returned into itsoff position. At this time, the control cams S, T and MHS open theassociated sets of switch springs bringing about deenergization of thespin solenoid 61, arresting of operation of the timer motor 96, andarresting of operation of the main motor 42. When the spin solenoid 61is thus deenergized, the unit 44 is returned to its declutched positionand the brake shoe 60 is reapplied so that rotation of the spin tub 36is quickly arrested. At this time, the normal washing cycle has beencompleted and the clothes may be removed from the spin tub 36 after thedoor 20 is operated into its open position.

Again referring to the water control system, it is pointed out that inthe fill position of the selector switch 85, the spin tub 36 may besupplied with warm water in the event that the warm pushbutton 92occupies its operated position. In this event, the hot water solenoid 83is energized directly via the set of switch springs governed by thecontrol cam HW, while the cold water solenoid 84 is energized via theclosed set of switch springs S1 of the water preselector switch S9 withthe warm pushbutton 92 in its operated position and via the set ofswitch springs governed by the control cam SS.

Similarly, in the rinse position of the selector switch 85, the spin tub36 may be supplied with warm water in the even: that the warm pushbutton94 of the rinse preselector switch 96 occupies its operated position. Inthis event, the cold water solenoid 84 is energized directly via the setof switch springs governed by the control cam CW, while the hot watersolenoid 83 is energized via the closed set of switch springs S2 of therinse preselector switch 94 with the warm pushbutton 94 in its operatedposition and via the set of switch springs governed by the control camSS.

Considering now in greater detail the mode of operation of the machine10 to carry out a washing operation involving delicate fabrics, theclothes are placed within the spin tub 36, together with the requireddetergent, and the door 20 is closed; whereupon the manual dial 88 isrotated into the beginning of its delicate fabrics segment 142 so thatthe index fill cooperates with the index marker 102 carried by thebacksplash 18; and then the manual dial 88 is lifted with respect to thebacksplash 18 so as to effect closure of the line switch 103. At thistime, it is again assumed that the hot pushbutton 91 of the washpreselector switch 89 occupies its operated position and that the coldpushbutton 95 of the rinse preselector switch 90 occupies its operatedposition. Closure of the line switch 103 effects the connection of theline conductor 132 to the bus 133, whereby the circuit for operating thetimer motor 96 is completed, as indicated in FIG. 4. Also, at this time,the circuit for energizing the hot water solenoid 83 is completed, andthe bus 133 is extended to the wash preselector switch 89; howeverwithout elfect at this time since the hot pushbutton 91 occupies itsoperated position. Accordingly, only the hot water solenoid 83 isenergized so that hot water is supplied into the spin tub 36. Also thebus 133 is extended via the set of switch springs governed by thecontrol cam MLS to the contact element 118, whereby the 4-pole startwinding 110 of the main motor 42 is energized; and also the 4-pole runwinding 111 is energized. Accordingly, the rotor 113 starts and isaccelerated toward its normal operating speed; and sometime preceding aspeed of the operating shaft 43 of about 1140 r.p.m., thespeed-responsive mechanism 115 is actuated so as to operate the contactbridging member 116 from its start position into its run position. Whenthe contact bridging member 116 is thus operated from its start positioninto its run position the parallel circuits for energizing the 4-polestart winding 110 and the 4-pole run winding 111 are interrupted, and analternative circuit is completed by the bridging member 116 at thecontact element 120 and 121 for energizing the 6-pole run winding 112.Hence the energization of the 6-pole run winding 112 causes the rotor113 of the main motor 42 to be accelerated on into its final operatingspeed of about 1140 r.p.m., the main motor 42 operating as a 6-polemotor at this time. While the main motor 42 is operated efiectingoperation of the motion-translating mechanism 51, the agitator 37 is notactuated at this time since the agitate solenoid 62 is now deenergized.

As time proceeds, the spin tub 36 is filled with hot water and the timermotor 96 efiects step-by-step rotation of the operating shaft 86 throughthe timer escapement mechanism 98 in a well-understood manner. Moreparticularly, at the expiration of five minutes, as indicated in FIG. 4,the selector switch is rotated into its wash position, whereby thecontrol cams SS and HW efifect opening of the associated sets of switchsprings with the consequent deenergization of the hot water solenoid 83and the resulting termination of the fill of the spin tub 36. At thispoint, it is noted that the supply of hot water to the spin tub 36 fromthe water system for a time interval of only five minutes effectssomewhat less than complete filling of the spin tub 36.

When the selector switch 85 is thus operated into its wash position, thecontrol cam A closes the associated set of switch springs effectingenergization of the agitate solenoid 62 with the consequent operation ofthe clutch mechanism 69 so that the agitator 37 is oscillated at about45 cycles per minute, thereby producing a gentle washing action upon theclothes in the spin tub 36.

The washing action continues for a time interval of three minutes, asindicated in FIG. 4, whereupon the selector switch 85 is operated intoits spin position so that the control cam A opens the associated set ofswitch springs effecting deenergization of the agitate solenoid 62 andthe control cam S eifects closure of the associated set of switchsprings eifecting energization of the spin solenoid 61. Accordingly, theclutch mechanism 59 is returned into its declutched position, and theunit 44 is operated into its clutched position effecting the release ofthe brake shoe 6%} and the acceleration of the spin tub 36 through thefluid drive unit 44, as time proceeds, into its speed of about 420r.p.m. Accordingly, the wash water in the spin tub 36 is centrifugedtherefrom into the drain tub 22 from which it is pumped to the exteriorby the operating drain pump 47.

After the expiration of an additional minute the control cams CW and HWclose the associated sets of switch springs, whereby the cold watersolenoid 84 and the hot water solenoid 83 are energized effecting thesupply of warm water into the spinning spin tub 36 resulting in aspinning-rinse of the clothes with warm water. The warm water is, ofcourse, spun-out of the spin tub 36 into the drain tub 22 and pumped tothe exterior by the drain pump 47. The spinning-rinse continues for oneminute, whereupon the control camsCW and HW open the associated sets ofswitch springs bringing about the deenergization of the cold watersolenoid 84 and the hot water solenoid 83, as indicated in FIG. 4. Thespinning operation of the spin tub 36 continues for an additionalminute, whereby the control cam S opens the associated set of switchsprings effecting the deenergization of the spin solenoid 61 with theresult that the unit 44 is declutched, and the brake shoe 60 isreapplied resulting in quick stopping of the spin tub 36. Also, at thistime, the control cams SS and CW close the associated sets of switchsprings with the result that only the cold water solenoid 84 isenergized, since the cold pushbutton of the rinse preselector switch 94}occupies its operated position. Accordingly, cold water is supplied intothe tub 36 for a time interval of five minutes; whereupon the controlcam A closes the associated set of switch springs effecting energizationof the agitate solenoid 62 with the 11 result that the agitator 37 isagain oscillated at about 45 cycles per minute while cold water issupplied to the spin tub 36, so that a deep cold water agitation andoverflow rinsing of the clothes is accomplished. This rinse cyclecontinues for one minute with the operation of the agitator 37, asindicated in FIG. 4, whereby the selector. switch 85 is operated intoits spin position so that the control cams SS, SW and A open theassociated sets of. switch springs and the control cam S closes theassociated set of switch springs. More particularly, the cold watersolenoid 84 is deenergized efiecting arresting of the'supply of-coldwater to the spin tub 36 and the agitate solenoid 62 is deenergized sothat the clutch mechanism 59 is returned to its declutched position.Closure of the set of switch springs associated with the control cam Sefiects energization of the spin solenoid 61, whereby the unit 4-4 isoperated into its clutched .position bringing about spinning of the spintub 36 in the manner previously explained. The spin tub 36 is spun at aspeed of about 420 r.p.rn. throughout a time interval of four minutes,as indicated in FlG. 4, so as to effect the desired centrifugalextraction of water from the delicate fabrics, whereby the selectorswitch 35 is returned into its off position. At this time, the controlcams S, T and MLS open the associated sets of switch springs bringingabout deenergization of the spin solenoid 61, arresting of operation ofthe timer motor 96 and arresting of operation of the main motor 42. Whenthe spin solenoid 61 is thus deenergized, the unit 44 is returned to itsdeclutched position and the brake shoe 60 is reapplied so that rotationof the spin tub 36 is quickly arrested. At this time, the gentle washingcycle has been completed and the clothes may be removed from the spintub 36 after the door 24 is operated into its open position.

The control of the water system in conjunction with the gentle cycle ofoperation of the machine It is the same as that described in conjunctionwith the normal cycle of operation thereof, and is not repeated in theinterest of brevity.

By way of recapitulation, it is noted that the two sets of switchsprings respectively governed by the two control cams MLS and MHScomprise a composite selector switch having a first position selectingthe 4-pole run winding 111 (when the cam MHS closes the associated setof switch springs while the manual dial 88 occupies its normal fabricsposition), and having a second position selecting the 6-pole run winding112 (when the cam MLS closes the associated set of switch springs whilethe manual dial'88 occupies its delicate fabrics position). Moreover,from a comparison of the normal cycle and the gentle cycle of themachine 10, as indicated in FIG. 4, it will be observed that certain ofthe operations involved in the normal cycle are longer as a matter oftime than the-corresponding operations involved in the gentle cycle,thereby to effect the corresponding normal and gentle actions withrespect to the corresponding normal and delicate fabrics. Moreover, inthe normal cycle, the agitation of the clothes is vigorous (the agitator37 being operated at about 64 cycles per minute); whereas, in the gentlecycle, the agitation of the clothes is gentle (the agitator 37 beingoperated at about 45 cycles per minute). Furthermore, in the normalcycle, the spinning of the clothes in the spin tub 36 is at a relativelyhigh speed (the spin tub 36 being rotated at about 640 r.p.m.); whereas,in the gentle cycle, the spinning of the clothes in the spin tub 36 isat a relatively low speed (the spin tub 36 being rotated at about 420r.p.m.). Accordingly, it will be understood that all of the operationsinvolved in the normal cycle of the machine 10 are directed toward theproduction of vigorous actions upon normal fabrics; whereas all of theoperations involved in the gentle cycle of the machine 1d are directedtoward the production of gentle actions upon delicate fabrics.

In connection with the operation of the machine 10,

it is noted that in either automatic cycle of operation thereof any stepmay be selectively omitted or shortened as a matter of time-duration byappropriate manipulation of the manual dial 88, the slip clutch 101accommodating relative rotation of the operating shafts 86 and 99 withrespect to each other. Furthermore, any portion of one of the automaticcycles may be combined with. any portion of the other of the automaticcycles in order to produce a mixed cycle, as desired, by the appropriatemanipulation of the manual dial 88. For example, the clothers may bewashed in the normal cycle and then subjected to a final spinning orrinse-water-extracting action in the gentle cycle; or conversely, theclothes may be washed in the gentle cycle and then subjected to a finalspinning or rinse-water-extracting action in the normal cycle; all byappropriate manipulation of the manual dial 83 to combine the requiredportions of the two cycles.

In view of the foregoing, it is apparent that there has been provided aclothes washing machine of the spintub type incorporating an improvedelectric control system involving an operating motor of the split-phase,4- pole-6 pole, induction type, whereby respective normal and gentlewashing actions upon corresponding normal and delicate fabrics may beselectively obtained in the machine merely by the correspondingselective control of the speed of the operating motor, the normalwashing action being produced when the motor is operated at itscorresponding relatively high speed and the gentle washing action beingproduced when the motor is operated at its corresponding relatively lowspeed.

While there has been described what is at present considered to be thepreferred embodiment of the invention, it will be understood thatvarious modifications may be made therein, and it is intended to coverin the appended claims all such modifications as fall within the truespirit and scope of the invention.

What is claimed is:

1. In a clothes washing machine including a tub adapted to receiveclothes to be washed, and washing mechanism operative to subject theclothes in said tub to washing actions, said mechanism being operativeat a relatively high speed to subject the clothes in said tub to anormal washing action suitable to normal fabrics and being operative ata relatively low speed to subject the clothes in said tub to a gentlewashing action suitable to delicate fabrics; the combination comprisingmeans including an electric drive motor for selectively operating saidmechanism, said motor being of the two-speed splitphase induction typeincluding a start Winding-and two run windings, said motor beingoperated at its relatively high speed when a first of its run windingsis energized to efiect said relatively high speed operation of saidmechanism and being operated at its relatively low speed when a secondof its 'run windings is energized to efiect said relatively low speedoperationof said mechanism, a manually operable selector switch having afirst position selecting said first run winding and a second positionselecting said second run winding, adevice governed by the speed of saidmotor and having corresponding start and run positions, a control switchgoverned by said device and having corresponding start and runpositions, a circuit network governed by said control switch in itsstart position for energizing both said start winding and apredetermined one of said run windings and governed by said controlswitch in its run position for energizing only the one of said runwindings selected by said selector switch, and means for selectivelycontrolling said circuit network in a predetermined cycle, wherebyoperation of said selector switch into its first position establishessaid normal washing action in said cycle and operation of said selectorswitch into its second position establishes said gentle'washing actionin said cycle.

2. In a clothes washing machine including a tub adapted to receiveclothes to be washed, and washing mechanism operative to subject'theclothes in'said tub to washing actions, said mechanism being operativeat a relatively high speed to subject the clothes in said tub to anormal washing action suitable to normal fabrics and being operative ata relatively low speed to subject the clothes in said tub to a gentlewashing action suitable to delicate fabrics; the combination comprisingmeans including an electric drive motor for selectively operating saidmechanism, said motor being of the splitphase induction type includingan N-pole start winding and a first N-pole run winding and a secondM-pole run winding, where N and M are even numbers and M N, said motorbeing operated at a relatively high speed when said first run winding isenergized to effect said relatively high speed operation of saidmechanism and being operated at a relatively low speed when said secondrun winding is energized to efiect said relatively low speed operationof said mechanism, a manually operable selector switch having a firstposition selecting said first run winding and a second positionselecting said second run winding, a device governed by the speed ofsaid motor and having corresponding start and run positions, a controlswitch governed by said device and having corresponding start and runpositions, a circuit network governed by said control switch in itsstart position for energizing both said start winding and apredetermined one of said run windings and governed by said controlswitch in its run position for energizing only the one of said runwindings selected by said selector switch, and means for selectivelycontrolling said circuit network in a predetermined cycle, wherebyoperation of said selector switch into its first position establishessaid normal washing action in said cycle and operation of said selectorswitch into its second position establishes said gentle washing actionin said cycle.

3. The clothes washing machine combination set forth in claim 2, whereN=4 and M=6 4. In a clothes washing machine including a tub adapted toreceive clothes to be washed, and washing mechanism operative to subjectthe clothes in said tub to washing actions, said mechanism beingoperative at a relatively high speed to subject the clothes in said tubto a normal washing action suitable to normal fabrics and beingoperative at a relatively low speed to subject the clothes in said tubto a gentle washing action suitable to delicate fabrics; the combinationcomprising means including an electric drive motor for selectivelyoperating said mechanism, said motor being of the two-speed splitphaseinduction type including a start winding and two run windings, saidmotor being operated at its relatively high speed when a first of itsrun windings is energized to effect said relatively high speed operationof said mechanism and being operated at its relatively low speed when asecond of its run windings is energized to effect said relatively lowspeed operation of said mechanism, a manually operable selector switchhaving a first position selecting said first run winding and a secondposition selecting said second run winding, a device governed by thespeed of said motor and having corresponding start and run positions, acontrol switch governed by said device and having corresponding startand run positions, a circuit network governed by said control switch inits start position for energizing both said start winding and said firstrun winding and governed by said control switch in its run position forenergizing only the one of said run windings selected by said selectorswitch, and means for selectively controlling said circuit network in apredetermined cycle, whereby operation of said selector switch into itsfirst position establishes said normal washing action in said cycle andoperation of said selector switch into its second position establishessaid gentle washing action in said cycle.

5. In a clothes washing machine including a tub adapted to receiveclothes to be washed, and washing mechanism operative to subject theclothes in said tub to washing actions, said mechanism being operativeat a relatively high speed to subject the clothes in said tub to anormal washing action suitable to normal fabrics and being operative ata relatively low speed to subject the clothes in said tub to a gentlewashing action suitable to delicate fabrics; the combination comprisingmeans including an electric drive motor for selectively operating saidmechanism, said motor being of the two-speed split-phase induction typeincluding a start winding and two run Windings, said motor beingoperated at its relatively high speed when a first of its run windingsis energized to efiect said relatively high speed operation of saidmechanism and being operated at its relatively low speed when a secondof its run windings is energized to effect said relatively low speedoperation of said mechanism, a manually settable program controllerhaving an ofi position and a variable normal fabrics position and avariable delicate fabrics position, timing means for returning saidprogram controller from its variable normal fabrics position back intoits off position in a corresponding first variable range of timeintervals and for returning said program controller from its variabledelicate fabrics position back into its off position in a correspondingsecond variable range of time intervals, a selector switch having afirst position selecting said first run winding and a second positionselecting said second run Winding, means governed by said programcontroller in its normal fabrics position for operating said selectorswitch into its first position and governed by said program controllerin its delicate fabrics position for operating said selector switch intoits second position, a device governed by the speed of said motor andhaving corresponding start and run positions, a control switch governedby said device and having corresponding start and run positions, acircuit network governed by said control switch in its start positionfor energizing both said start winding and a predetermined one of saidrun windings and governed by said control switch in its run position forenergizing only the one of said run windings selected by said selectorswitch, and means including said program controller for selectivelycontrolling said circuit network in a predetermined cycle, wherebyoperation of said program controller into its normal fabrics positionestablishes said normal washing action in said cycle and operation ofsaid program controller into its delicate fabrics position establishessaid gentle washing action in said cycle.

6. The clothes washing machine combination set forth in claim 1, whereinsaid washing mechanism consists essentially of an agitator arranged insaid tub, and said operation of said mechanism at its relatively highspeed consists of oscillating said agitator at a relatively high rateand said operation of said mechanism at its rela tively low speedconsists of oscillating said agitator at a relatively low rate.

7. The clothes washing machine combination set forth in claim 6, whereinsaid relatively high rate of oscillation of said agitator is at about 60cycles per minute and said relatively low rate of oscillation of saidagitator is at about 40 cycles per minute.

8. In a clothes washing machine including a tub adapted to receiveclothes to be washed, means for washing the clothes in said tub, andwater-extracting mechanism operative to subject the clothes in said tubto water-extracting actions, said mechanism being operative at arelatively high speed to subject the clothes in said tub to a normalwater-extracting action suitable to normal fabrics and being operativeat a relatively low speed to subject the clothes in said tub to a gentlewater-extracting action suitable to delicate fabrics; the combinationcomprising means including an electric drive motor for selectivelyoperating said mechanism, said motor being of the twospeed split-phaseinduction type including a start winding and two run windings, saidmotor being operated at its relatively high speed when a first of itsrun windings is energized to efiect said relatively high speed operationof said mechanism and being operated at its relatively 'low. speed whena second of its run windings is energized to effect said relatively lowspeed operation of said mechanism, a manually operable selector switchhaving a first position selecting said first run winding and a secondposition selecting said second run winding, a device governed by thespeed of said motor and having corresponding start and run positions, acontrol switch governed by said deviceand having corresponding start andrun positions, a circuit network governed by said control switch in itsstart position for energizing both said start winding and apredetermined one of said run windings and governed by said controlswitch in its run position for energizing only the one of said runwindings selected by said selector switch, and means for selectivelycontrolling said circuit network in a predetermined cycle, wherebyoperation of said selector switch into its first position establishessaid normal water-extracting action in said cycle and operation of saidselector switch into its second position establishes said gentlewater-extracting action in said cycle.

9.' The clothes washing machine combination set forth in claim 8,wherein said tub is mounted for rotation, and said water-extractingmechanism subjects the clothes in said tub to said normalwater-extracting action by rotating said tub at a correspondingrelatively high speed and subjects the clothes in said tub to saidgentle waterextracting action by rotating said tub at a correspondingrelatively low speed.

10. The clothes washing machine combination set forth in claim 8,wherein said tub is mounted for rotation, and said water-extractingmechanism subjects the clothes in said tub to said normalwater-extracting action by rotating the same at a relatively high speedof about 660 rpm. and subjects the clothes in said tub to said gentlewaterextracting action by rotating the same at a relatively low speed ofabout 400 rpm.

11. Ina clothes washing machine including a tub adapted to receiveclothes to be washed, washing mechanism operative to subject the clothesin said tub to washing actions, said washing mechanism being operativeat a relatively high speed to subject'the clothes in said tub to anormal washing action suitable to normal fabrics and being operative ata relatively low speed to subject the clothes in said tub to a gentlewashing action suitable to delicate fabrics, and water-extractingmechanism operative to subject the clothes in said tub towater-extraction actions, said water-extracting mechanism beingoperative at a relatively high speed to subject the clothes in said tubto a normal water-extracting action suitable to normal fabrics and beingoperative at a rela-. tively low speed to subject the clothes in saidtubto a gentle water-extracting action suitable to delicate fabrics; thecombination comprising an electric drive motor of 16 the two-speedsplit-phase induction type including a start winding and two runwindings, said motor being operated at its relatively high speed when afirst of its run windings is energized and operated at its relativelylow speed when a second of its run windings is energized, means forselectively connecting said motor to said mechanisms, said motor whenconnected to either one of said mechanisms and operated respectively atits relatively high speed and at its relatively low speed effectingrespectively said relatively high speed operation and said relativelylow speed operation of said connected one mechanism, a manually operableselector switch having a first position selecting said first run windingand a second position selecting said second run winding, a devicegoverned by the speed of said motor and having corresponding start andrun positions, a control switch governed by said device and havingcorresponding start and run positions, a circuit network governed bysaid control switch in its start position'for energizing both said startwinding and a predetermined one of said run windings and governed bysaid control switch in its run position for energizing only the one ofsaid run windings selected by said selector switch, and means forselectively controlling said connecting means and said circuit networkin a predetermined cycle, whereby operation of said selector switch intosaid first position establishes both said normal washing'action of saidwashing mechanism and said normal water-extracting action of saidwater-extracting mechanism in said cycle and operation of said selectorswitch into its secend position establishes both said gentle washingaction of said washing mechanism and said gentle water-extracting actionof said water-extracting mechanism in said cycle.

References Cited in the file of this patent UNITED STATES PATENTS Re.18,010 Schuyler Mar. 24, 1931 1,935,145 Davis Nov. 14, 1933 2,282,332Kuhn May 12, 1942 2,292,815 Barifii Aug. 11,1942 7 2,434,199 Dyer Jan.6, 1948 2,561,186 -Dunham July 17, 1951 2,579,066 Codling Dec. 18, 19512,608,252 Candor Aug. 26, 1952 FOREIGN PATENTS 299,413 Great BritainOct. 26, 1928 625,926 Great Britain July 6, 1949 OTHER REFERENCES HereIs a Washer To Fit Every Load, publication by Prosperity Co., Inc,Syracuse, N.Y., 1936.

